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Found 2 results

  1. Hi everyone, I would really appreciate some help in solving the following question. I did the process but I wanted to ensure that I achieved the correct answer. Thank you Two aqueous solutions, one containing 5.3 g of sodium carbonate and the other 7.0 g of calcium chloride, are mixed together. A precipitation reaction occurs: Na2CO3+CaCl2=2NaCl+CaCO3 Determine the limiting reagent and the mass, in g, of precipitate formed (theoretical yield).
  2. abdelrahman

    Help me understand worked example

    help me understand this worked example in the book as i am not able to understand the transformation from grams to the normal formula. What is the maximum volume of ammonia gas ( measured ar 273 K and 10.1 *10^5 Pa) that could be obtained from the reaction between 10g of hydrogen and 30g of nitrogen? if the actual amount of ammonia obtained is 7.05 dm^3 calculate the percentage yield for the reaction. Step 1 Write the quation for the reaction (assume the reaction goes to completion to give the maximum amount of products.) 3H2(g) + N2(g)= 2NH3(g) ( i dont get this part how did it transform from the 30g N and 10g H to this formula with these coeffecients) I would really appreciate help in this as i dont get it and i am self studying the whole ib chemistry HL course. thanks
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